Malaysia officially declares the disappearance of MH370 over the Indian Ocean in March 2014 an accident, and says all 239 people on board are presumed dead.
Falling oil prices are forcing Royal Dutch Shell to cut back investment by some $15bn (£9.9bn) over the next three years.
US technology giant Apple has reported the biggest quarterly profit ever made by a public company. It made a net profit of $18bn (£11.8bn) in its fiscal first quarter, driven by record sales of iPhones.
A giant red leech hunts down a 70cm long blue worm
The tiny Colibri electric car aims to personalise urban mobility
In the deepest depths, the water is freezing cold and the pressure is pulverising. Yet animals somehow survive in this most extreme environment. But what lives down there?
A number of Brazil's tribal groups have chosen to leave subsistence farming behind for tourism - an easier and more lucrative way to make a living. But are they at risk of exploitation?
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